| E | O (JD) | O (dat) | Period |
| -88 | 2413189 | 1894-12-26 | 321.91 |
| -87 | 2413508 | 1895-11-10 | 322.69 |
| -86 | 2413837 | 1896-10-04 | 322.99 |
| -85 | 2414142 | 1897-08-05 | 323.14 |
| -81 | 2415443 | 1901-02-27 | 324.05 |
| -79 | 2416084 | 1902-11-30 | 324.46 |
| -78 | 2416420 | 1903-11-01 | 325.15 |
| -77 | 2416742 | 1904-09-18 | 325.89 |
| -76 | 2417065 | 1905-08-07 | 326.72 |
| -72 | 2418381 | 1909-03-15 | 327.35 |
| -71 | 2418705 | 1910-02-02 | 327.74 |
| -69 | 2419360 | 1911-11-19 | 327.74 |
| -68 | 2419695 | 1912-10-19 | 328.23 |
| -67 | 2420015 | 1913-09-04 | 328.71 |
| -63 | 2421330 | 1917-04-11 | 328.94 |
| -62 | 2421660 | 1918-03-07 | 329.22 |
| -61 | 2421987 | 1919-01-28 | 329.44 |
| -60 | 2422327 | 1920-01-03 | 329.25 |
| -59 | 2422660 | 1920-12-01 | 329.57 |
| -58 | 2422983 | 1921-10-20 | 329.14 |
| -57 | 2423312 | 1922-09-14 | 328.04 |
| -56 | 2423643 | 1923-08-11 | 327.75 |
| -55 | 2423963 | 1924-06-26 | 327.57 |
| -54 | 2424297 | 1925-05-26 | 327.71 |
| -53 | 2424619 | 1926-04-13 | 327.78 |
| -52 | 2424936 | 1927-02-24 | 327.99 |
| -51 | 2425279 | 1928-02-02 | 328.51 |
| -50 | 2425613 | 1929-01-01 | 329.04 |
| -49 | 2425937 | 1929-11-21 | 329.7 |
| -48 | 2426258 | 1930-10-08 | 330.21 |
| -47 | 2426593 | 1931-09-08 | 330.43 |
| -46 | 2426927 | 1932-08-07 | 330.18 |
| -45 | 2427253 | 1933-06-29 | 330.55 |
| -44 | 2427594 | 1934-06-05 | 331 |
| -43 | 2427916 | 1935-04-23 | 331.28 |
| -42 | 2428247 | 1936-03-19 | 330.6 |
| -41 | 2428582 | 1937-02-17 | 329.99 |
| -40 | 2428913 | 1938-01-14 | 329.2 |
| -39 | 2429241 | 1938-12-08 | 327.95 |
| -38 | 2429574 | 1939-11-06 | 327.29 |
| -37 | 2429895 | 1940-09-22 | 326.81 |
| -36 | 2430222 | 1941-08-15 | 326.64 |
| -35 | 2430543 | 1942-07-02 | 326.8 |
| -34 | 2430865 | 1943-05-20 | 326.92 |
| -33 | 2431191 | 1944-04-10 | 327.04 |
| -32 | 2431528 | 1945-03-13 | 327.45 |
| -31 | 2431860 | 1946-02-08 | 327.74 |
| -30 | 2432188 | 1947-01-02 | 328.15 |
| -29 | 2432511 | 1947-11-21 | 328.16 |
| -28 | 2432837 | 1948-10-12 | 327.55 |
| -27 | 2433163 | 1949-09-03 | 327.03 |
| -26 | 2433493 | 1950-07-30 | 326.97 |
| -25 | 2433823 | 1951-06-25 | 326.74 |
| -24 | 2434149 | 1952-05-16 | 326.64 |
| -23 | 2434470 | 1953-04-02 | 326.91 |
| -22 | 2434802 | 1954-02-28 | 326.99 |
| -21 | 2435130 | 1955-01-22 | 327.12 |
| -20 | 2435448 | 1955-12-06 | 327.61 |
| -19 | 2435775 | 1956-10-28 | 328.12 |
| -18 | 2436113 | 1957-10-01 | 328.65 |
| -17 | 2436438 | 1958-08-22 | 329.06 |
| -16 | 2436768 | 1959-07-18 | 329.81 |
| -15 | 2437101 | 1960-06-15 | 330.61 |
| -14 | 2437427 | 1961-05-07 | 330.52 |
| -13 | 2437757 | 1962-04-02 | 330.29 |
| -12 | 2438091 | 1963-03-02 | 330.22 |
| -11 | 2438424 | 1964-01-29 | 329.85 |
| -10 | 2438756 | 1964-12-26 | 329.1 |
| -9 | 2439080 | 1965-11-15 | 328.55 |
| -8 | 2439411 | 1966-10-12 | 327.44 |
| -7 | 2439736 | 1967-09-02 | 326.37 |
| -6 | 2440064 | 1968-07-26 | 325.75 |
| -5 | 2440385 | 1969-06-12 | 325.45 |
| -4 | 2440713 | 1970-05-06 | 325.18 |
| -3 | 2441032 | 1971-03-21 | 325.01 |
| -2 | 2441358 | 1972-02-10 | 325.77 |
| -1 | 2441687 | 1973-01-04 | 325.29 |
| 0 | 2442014 | 1973-11-27 | 325.22 |
| 1 | 2442334 | 1974-10-13 | 325.35 |
| 2 | 2442663 | 1975-09-07 | 325.81 |
| 3 | 2443003 | 1976-08-12 | 325.74 |
| 4 | 2443304 | 1977-06-09 | 325.85 |
| 5 | 2443633 | 1978-05-04 | 326.31 |
| 6 | 2443966 | 1979-04-02 | 327.18 |
| 7 | 2444296 | 1980-02-26 | 327.74 |
| 8 | 2444618 | 1981-01-13 | 328.43 |
| 9 | 2444948 | 1981-12-09 | 329.85 |
| 10 | 2445279 | 1982-11-05 | 328.82 |
| 11 | 2445614 | 1983-10-06 | 328.52 |
| 12 | 2445943 | 1984-08-30 | 328.36 |
| 13 | 2446273 | 1985-07-26 | 327.97 |
| 14 | 2446603 | 1986-06-21 | 327.26 |
| 15 | 2446908 | 1987-04-22 | 326.9 |
| 16 | 2447250 | 1988-03-29 | 326.77 |
| 17 | 2447577 | 1989-02-19 | 326.88 |
| 18 | 2447898 | 1990-01-06 | 326.99 |
| 19 | 2448225 | 1990-11-29 | 327.37 |
| 20 | 2448558 | 1991-10-28 | 327.95 |
| 21 | 2448888 | 1992-09-22 | 327.65 |
| 22 | 2449213 | 1993-08-13 | 328.01 |
| 23 | 2449538 | 1994-07-04 | 328.21 |
| 24 | 2449867 | 1995-05-29 | 328.21 |
| 25 | 2450194 | 1996-04-20 | 328.38 |
| 26 | 2450527 | 1997-03-19 | 328.63 |
| 27 | 2450855 | 1998-02-10 | 328.94 |
| 28 | 2451180 | 1999-01-01 | 328.87 |
| 29 | 2451511 | 1999-11-28 | 328.99 |
| 30 | 2451845 | 2000-10-27 | 328.23 |
| 31 | 2452171 | 2001-09-18 | 327.74 |
| 32 | 2452499 | 2002-08-12 | 328.01 |
| 33 | 2452823 | 2003-07-02 | 327.99 |
| 34 | 2453159 | 2004-06-02 | 328.2 |
| 35 | 2453469 | 2005-04-08 | 328.45 |
| 36 | 2453803 | 2006-03-08 | 328.92 |
| 37 | 2454142 | 2007-02-10 | 329.15 |
| 38 | 2454465 | 2007-12-30 | 329.33 |
| 39 | 2454802 | 2008-12-01 | 329.02 |
| 40 | 2455130 | 2009-10-25 | 329.52 |
| 41 | 2455458 | 2010-09-18 | 328.67 |
| 42 | 2455784 | 2011-08-10 | 328.24 |
| 43 | 2456112 | 2012-07-03 | 328.4 |
| 44 | 2456435 | 2013-05-22 | 328.14 |
| 45 | 2456772 | 2014-04-24 | 328.36 |
| 46 | 2457093 | 2015-03-11 | 328.34 |
| 47 | 2457426 | 2016-02-07 | 328.83 |
| 48 | 2457757 | 2017-01-03 | 328.67 |
| 49 | 2458083 | 2017-11-25 | 328.92 |
| 50 | 2458413 | 2018-10-21 | 328.69 |
| 51 | 2458736 | 2019-09-09 | 328.97 |
| 52 | 2459075 | 2020-08-13 | 328.65 |
| 53 | 2459393 | 2021-06-27 | 328.61 |
| 54 | 2459730 | 2022-05-30 | 328.97 |
| E | Cycle number from the GCVS4 epoch. |
| O (JD) | Julian date at observed time for maximum. |
| O (Dat) | Same as above, expressed as date. |
| Period | Calculated mean period at cycle number E. |